AMD Ryzen 7 6800H vs AMD Ryzen 9 6900HS Comparison

The AMD Ryzen 9 6900HS and AMD Ryzen 7 6800H are both 8-core, 16-thread Zen 3+ mobile processors built on TSMC's 6 nm node, sharing the same Rembrandt codename, 16 MB of shared L3 cache, and Radeon 680M integrated graphics. The data shows the Ryzen 9 6900HS wins the head-to-head benchmark comparison 17 tests to 6, yet the overall average benchmark scores are nearly identical: 25284 for the 6900HS versus 25201 for the 6800H, a difference of just 0.3%. This slim margin means that while the 6900HS dominates in synthetic multi-threaded workloads like 3DMark, the 6800H actually turns the tables in Geekbench and several Passmark tests. The selection between these two hinges on workload priority and thermal constraints, not raw capability. For users prioritizing peak multi-threaded performance in short bursts, the 6900HS is the clear winner. For those favoring sustained single-threaded efficiency or specific workloads like data compression, the 6800H holds its ground despite its higher TDP.

The Verdict

The benchmark data presents a nuanced picture. The AMD Ryzen 9 6900HS is the performance pick for most compute-heavy tasks, especially those that scale with thread count. It delivers a 6.1% advantage in 3DMark's 16-thread test (6963 vs 6560) and a 2.7% lead in Cinebench R23 multi-core (13445 vs 13094). Its 8.1% margin in 3DMark's 8-thread test (5830 vs 5392) is the largest single win in the entire comparison. However, the Ryzen 7 6800H is not a clear loser. It wins Geekbench multi-core by 2% (9642 vs 9451) and single-core by 1.6% (1761 vs 1733), plus Passmark's data compression test by 0.4% (293929 vs 292842). The 6900HS achieves its wins while carrying a 35 W TDP versus the 6800H's 45 W TDP. This is a critical distinction: the 6900HS delivers higher performance at a lower thermal envelope. For a laptop buyer, the 6900HS offers the superior performance-per-watt profile. The 6800H makes sense only if Geekbench-style workloads are the primary use case, or if the specific workload involves data compression, extended instructions, or random string sorting, where the 6800H shows marginal leads. The 6900HS is the recommended choice for the majority of users based on its win count and the magnitude of its multi-threaded victories.

Where Each One Wins

The AMD Ryzen 9 6900HS wins decisively in 3DMark across all thread counts. Its margins range from 3.9% at 2 threads to 8.1% at 8 threads, with a 6.5% lead at max threads. This suggests a strong advantage in gaming and other latency-sensitive multi-threaded tasks. It also wins Cinebench R15 and R23 in both single-core and multi-core tests, though the margins are smaller, ranging from 0.8% to 2.7%. The 6900HS also takes Passmark's integer math, floating point math, encryption, prime number finding, and single-thread tests, with leads between 0.2% and 1.8%.

The AMD Ryzen 7 6800H, while losing the majority of tests, wins in Geekbench both single-core (1761 vs 1733) and multi-core (9642 vs 9451). It also wins Passmark data compression (293929 vs 292842), extended instructions (20114 vs 20015), physics (1046 vs 1041), and random string sorting (30668 vs 30528). These wins are all narrow, under 2%. The 6800H's Geekbench victory is notable because Geekbench often reflects real-world application performance. The data indicates the 6800H is better suited for workloads that involve data compression, cryptographic instruction sets, and physics simulations. The 6900HS is for general compute, rendering, and gaming, while the 6800H is for specific productivity and scientific workloads.

Architecture Differences

Both processors share the same fundamental architecture: Zen 3+ on a 6 nm TSMC process, with a die size of 208 mm². They both have 8 cores and 16 threads, with a per-core L1 cache of 64 KB and a per-core L2 cache of 512 KB, plus a shared 16 MB L3 cache. Both support DDR5 memory in dual-channel configuration with a bandwidth of 76.8 GB/s, and both have 20 PCIe Gen 4 lanes. The integrated graphics are identical: Radeon 680M. The sockets are the same, AMD Socket FP7, and both are mobile-market segments.

The key architectural differences are clock speeds and TDP. The Ryzen 9 6900HS has a base clock of 3.30 GHz and a boost clock of 4.90 GHz, while the Ryzen 7 6800H has a base clock of 3.20 GHz and a boost clock of 4.70 GHz. This 0.10 GHz base and 0.20 GHz boost advantage for the 6900HS explains its performance lead. The TDP difference is more significant: the 6900HS is rated at 35 W, while the 6800H is rated at 45 W. The 6900HS achieves higher clocks at a lower power draw, indicating a superior binning of the same silicon. Both processors have the same part number (100-000000545100-000000561) and neither has an unlocked multiplier. The 6900HS is marked as Ryzen 9 generation, while the 6800H is Ryzen 7, but the underlying die is identical, just with different clock and power profiles.

FAQ

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 9 6900HS has a boost clock of 4.90 GHz, while the AMD Ryzen 7 6800H has a boost clock of 4.70 GHz.

Q: Is the Ryzen 9 6900HS better for multi-threaded rendering?

A: Yes, in Cinebench R23 multi-core, the 6900HS scores 13445 versus the 6800H's 13094, a 2.7% advantage. The 6900HS also leads in 3DMark 16-thread tests by 6.1%.

Q: Does the Ryzen 7 6800H win any benchmark?

A: Yes, the 6800H wins Geekbench multi-core (9642 vs 9451) and single-core (1761 vs 1733), as well as Passmark data compression, extended instructions, physics, and random string sorting.

Q: What is the TDP difference between the two?

A: The Ryzen 9 6900HS has a TDP of 35 W, while the Ryzen 7 6800H has a TDP of 45 W. The 6900HS delivers higher performance at a lower thermal design power.

Q: Do both CPUs have the same cache configuration?

A: Yes, both have 64 KB L1 per core, 512 KB L2 per core, and 16 MB shared L3 cache.

Q: Which CPU has a higher average benchmark score?

A: The Ryzen 9 6900HS has an average benchmark score of 25284, while the Ryzen 7 6800H has 25201, a difference of only 0.3%.

Head-to-Head Benchmarks

The biggest win for the AMD Ryzen 9 6900HS comes in 3DMark's 8-thread test, where it scores 5830 against the 6800H's 5392, an 8.1% delta. This is followed by a 6.6% lead in 4-thread (3427 vs 3214) and a 6.5% lead in max-thread (6955 vs 6532). The 16-thread test shows a 6.1% advantage (6963 vs 6560), and even the 2-thread test shows a 3.9% lead (1761 vs 1695). In Cinebench R23 multi-core, the 6900HS leads by 2.7% (13445 vs 13094), while the single-core lead is just 0.8% (1554 vs 1542). Passmark integer math shows a 1.2% lead (86449 vs 85397), and floating point math shows a 0.5% lead (48239 vs 47989). The 6900HS also wins Passmark single-thread by 0.8% (3237 vs 3212).

The AMD Ryzen 7 6800H's wins are all narrow. Its largest victory is in Geekbench multi-core, scoring 9642 versus 9451, a 2% delta. In Geekbench single-core, it scores 1761 versus 1733, a 1.6% lead. The remaining wins are under 1%. In Passmark data compression, the 6800H scores 293929 against 292842, a 0.4% lead. Passmark extended instructions shows a 0.5% lead (20114 vs 20015), and random string sorting shows a 0.5% lead (30668 vs 30528). Passmark physics is also a 0.5% win for the 6800H (1046 vs 1041). The 6800H's win count of 6 is dwarfed by the 6900HS's 17 wins, but the total score difference across all benchmarks is negligible. The 6900HS's wins are larger in magnitude, particularly in 3DMark, cementing its status as the higher-performing chip in the majority of scenarios.